Directory



April 21, 1936. G. ,J. CHAPMAN DIREGTORY Filed Dec 5, 1934 4 Sheets-Sheet 1 M w W M pr 1936. G. J. CHAPMAN 2,037,705

DIRECTORY Filed Dec. 5, 1934 4 Sheets-Sheet 2 N s w A H w/ mm m M an MW M v m @N Ll. w 4M m Q 2F vi Q MJ g Aw w M w 6 P f 1936- G. J. CHAPMAN 2,037,705

I DIRECTORY Filed Dec. 5, 1934 4 Sheets-sheaf. 3

April 21, 1936.

G. J. CHAPMAN DIRECTORY 4 Sheets-Sheet 4' Filed Dec. 5, 1934 [D xie K L Avwswrow 650/?6! J CAMP/WAN Patented Apr. 21, 1936 UNITED (STATES PATENT OFFICE nmnc'roar George J. Chapman, Shaker Heights, Ohio Application December 5, 1934, Serial N... 756,161

11 Claims. (01. 40-95) My invention particularly relates to directories of the character shown and described in my application for United States Letters Patent Serial No. 703,746, which issued as Patent No. 1,988,162. 5 These directories have the tabulated and classifled data thereof displayed on fleidble fllms' in small characters so as to permit the inclusion of a large amount of such data in small compass.- Preferably, the data is displayed in such small characters as to require lenses of high magnifying power readily to locate and accurately to read the desired information. Part of the improvements of the instant application comprise a. different arrangement of magnifying means than 15 that shownin said application. Other improvements in directories of this character presented by the instant application, over and above those shown and described in said application, relate to the adjustment of the small characters for the 20 purpose of bringing into the proper field the particular characters which are sought at any one time; the arrangement of the small characters upon the film or ribbon upon which they are displayed; the construction of the casing in which 25 the several supporting and operating elements are mounted; and the mechanism for indicating the position of the film or ribbon upon which, the small characters are displayed.

My invention lends itself for use in many fields 30 which require directories or indices, but I have found my invention particularly adaptable for use as a telephone directory, so that the principle of my invention is illustrated in this application by reference to such adirectory. 35 The annexed drawings and the following description set forth in detail certain means embodying my invention, such means disclosing,

however, but one of the various forms in which the principle of the invention may be embodied. 40 In said annexed drawings:

Figure 1 is a vertical longitudinal section of my improved directory, taken in the plane indicated by the line I-i, Figures 3, 4, and 7;

Figure 2 is a fragmentary plan section, taken in 45 the planes indicated by the line 22, Figure 1, the upper wall of the casing being omitted; Figure 3 is a plan section, taken in the plane indicated by the line 3-3, Figure 1; v

Figure 4 is a transverse vertical section, taken 50 in the plane indicated by the line 4--4, Figures 1 and 3, the film-loading position of certain elements being indicated in dot-and-dash lines, three positions of a certain hand wheel for actuating certain film-moving mechanisms being 55 shown in this figure;

Figure 5 is a fragmentary vertical longitudinal section; showing drive gearing for film rolls, the section being taken in the plane indicated by the line 55, Figures 3 and 4;

Figure 6 is a broken developed elevation of the 5 film or ribbon upon which the minute-sized tabulated data, such as the names of the telephone users, and their respective telephone numbers, is displayed, the view showing the data on the film in that arrangement which it has when in fllm- 10 feeding position in the directory, this arrangement being opposite to that, both lengthwise and crosswise, which is seen in the magnified image by the directory operator; and

Figure 7 is a plan view of the casing in which the supporting and operating mechanisms of my directory are mounted.

- Referring to the annexed drawings, in which, the same parts are indicated by the same respective numbers in the several views, a casing I, of the general outline in plan indicated in lflgure 'i', is provided with a transverse partition 2, Figures 1 and 3, secured adjacent its outer edge to a flan ge 3 formed interiorly of the casing I, said partition 2 having a central circular opening 2'. bounded by a two-part ring 2 of which the parts have screw-threaded engagement with a flange 2 formed on the partition 2 at the edge of the opening 2', the assembly. in combination with a lens-spacing ring 2 forming a support for a pair of double convex lenses 32, whose purpose will be hereinafter fully described. The transverse partition 2 deflnes a chamber I at the front end of the casing I.

A second transverse partition 4 defines a casing chamber I", said partition 4 being secured adjacent .its outer edge to a'flange 5 formed interiorly of the casing I, said partition 4 having a central opening 4' within which is mounted a double convex lens 34, through the medium of a 40 ring 4', of T-shaped cross-section, the exterior surface of the stem of which abuts that wall of the partition 4 which bounds the opening 4', and the interior surface of which stem is threaded to accommodate an externally-threaded annular washer 4 as clearly indicated in Figures 1 and 3.

Another transverse partition 6 secured at its outer edge by a flange 3' to the interior face of the casing I defines a third casing chamber I; as also, a fourth chamber I at the rear end of the casing I. Said partition 3 is formed with a central opening 3', and is an angular member, as clearly indicated in Figure l, of which one part 3 extends at'substantially right angles to the planes of the side members of the casing I, and another part 6 extends at substantially a angle to the portion 6 and is secured by the flange 6' to the inner surface of the casing I through the medium of 'a lug or lugs I-secured to and extended inwardly of the top of the casing I.

Extended outwardly from one side of the cas ing l is a cap-like wall 8, Figures 3 and 4, forming a chamber l and extended lengthwise of the casing chamber I is a partition 9 adjacent to but inwardly spaced from the chamber i and forming a parallel adjacent chamber I The cap 8 is mounted upon a removable casing side wall 83 which covers the chamber l and also provides access thereto.

Mounted upon a pair of vertically-spaced transverse shafts lll and II rotatably mounted at one end in one side wall of the casing I and disposed in the chamber I, are a pair of rollers I2 and I3 upon one of which, when the rollers l2 and I 3 are rotated, a flexible film or ribbon I4 is adapted to be wound, and from the other of which rollers the ribbon I4 is adapted to be unwound, this rib bon l4 displaying in small characters the names of the telephone users and their respective telephone members, or any other suitable-indicia for the location and inspection of which my improved directory is used. The roll shafts Ill and II are rotatably supported in a traveling carriage 68 within which the rolls [2 and I3 are located, the

roll shaft l0 and H having free ends extended' laterally from one side of the carriage 68 in the operative position of the rollers 12 and I3, as

- will be hereinafter fully described. The rolls l2 and I3 are rotated by means hereinafter fully the ribbon H from one roll and to wind it upon the other. The respective ends of the ribbon I4 are secured to the rolls I2 and I3 by means of spring plate fasteners 15, Figure 1, having claws ribbon, the spring fasteners I 5 being secured at their other ends by screws 18 to plane chord-like portions '13 formed upon the rolls l2 and I3, these spring fasteners l5 being contained within narrow recesses l1 formed in the rolls l2 and I3.

Exterior manual control of the rotation of the rolls I 2 and His aiforded by a hand wheel 20, Figure 4, secured to the outer end of a shaft 2| mounted in the cap member 8 and in the adjacent side wall 83 of the casing I, and extended through the chamber I and into the chamber l. The shaft 2| is laterally movable inwardly and outwardly of the chambers 1 and I by pulling upon or pushing the hand wheel 20, in addition to being rotatable by the hand wheel 20, and in three ofits lateral positions, the shaft 2| is effective for certain operations in the manipulation of the directory, as hereinafter fully described. A pinion 22 is secured to the inner end of the shaft 2 I. Mounted upon a pin 23-secured in the partition 9 and the adjacent casing side wall 83 is a unitary transmission unit consisting of .a central pinion 25 and laterally opposed internal and external gears 26 and 21, respectively. Engaging the internal gear 26 is an idler pinion 28 mounted upon a pin 29 supported in the side wall 83. The three lateral positions of the shaft 2 l, hereinbefore mentioned, effective for the use of the directory,

, are as follows: First, the hand wheel 20 secured to the shaft 2| is shown in full lines in Figure 4 in an idle position which is efiective for maintaining a lamp 33 turned off, as hereinafter fully described; secondly, an intermediate position of the shaft 2|, shown by dotted lines in Figure 4, engages the driven pinion 22 with the pinion 25 to eil'ect the rotation of the internal and external gears 26 and 21 at a certain speed; and thirdly, an outer position of the shaft 2|, shown in Figure 4 by dot-and-dash lines, efl'ects the engagement of the driven pinion 22 with the idler pinion 28 to efiect a rotation of the internaluand external gears 26 and 21 at a certain speed materially slower than that effected by the intermediate position of the shaft 2| shown in dotted lines in Figure 4. It is evident that both the internal gear 25 and the external gear 21 rotate together at both speeds, since they are both parts of a unitary transmission element which also includes the pinion 25. That the rotation of the internal and external gears 26 and 21 effected by the intermediate position of the shaft 2|, when the driven pinion 22 and the pinion 25 are engaged, is materially faster than the rotation of said gears effected by the outer position of the shaft 2|,

when the driven pinion 22 and the idler pinion 28 are engaged, is.clearly evident from the showing of the drive gearing indicated in Figure 5. The purpose of these differential speeds will be hereinafter fully described. These different speeds are communicated to the rolls l2 and I8 through the medium of pinions 30 engaged by the external gear 21 and secured respectively to the shafts l0 and II to which the respective rolls I2 and I3 ar secured.

The purpose of the driving mechanism just described is to effect winding upon, and unwinding of the ribbon II from, the rolls l2 and I3, the ribbon l4 traveling in a vertical direction, in the arrangement of apparatus shown in the accompanying drawings. Only the indicia shown upon a narrow vertical division of the ribbon travels by the lens 34, during the movements of the ribbon ll effected by the hand wheel 28, in any one lateral position of the ribbon H, the arrangement andpurpose of many such narrow vertical divisions of which the whole ribbon I 4 is composed, and which are relatively laterally arranged, being hereinafter fully described; as also are described the means for laterally shifting the ribbon ll, so as to effect a longitudinal alignment of any selective one of the ribbon divisions with the lens The means for so laterally'shifting the ribbon ll are controlled by a thumb piece I5, Figures 1 and 4, which is secured to an outwardly-extending pin 16 mounted in a boss 16' extended inwardly from the top of the casing I. end of the pin 16 is a pinion H disposed between and engaging two opposed transversely-movable rack members 13 and 19. The rack member I3 at its two ends is secured toangles 82 which in turn are secured to downwardly-extended plates 68 adapted to slide upon a pair of upper and lower transverse rods 61, Figure 4, mounted at one end in the partition 9 and side wall 83 of the casing l and at the other end in a casing side door 51. The rack member 13 and the vertical plates 68 form a carriage 68 which can be laterally Secured to the inner shifted upon the rods 81 by the actuation of'the 42 supported by a bracket 52 formed with and,

rolls l2 and I3 are mounted upon the shafts Ill and Il between the side members 63'. The ends of the rolls l2 and I3 are closely adjacent the inner faces of the plates 68'.

A traveling pointer 43 cooperates with the movement of the ribbon |4 effected by the actuation of the hand wheel 23, and also with the lateral shifting of the ribbon |4 eflected by the actuation of the thumb piece 15. This cooperation by the pointer 43 is effected by its moving over an indicator plate 11, when the rolls I2 and I3 are turned by the hand wheel 2|), and by the movement of the indicator plate 11 relatively to the pointer 43, when the rolls I2 and I3 are shifted laterally through the medium of the thumb piece 15.

Describing first the movement of the pointer 43, when the hand wheel 2|] is actuated, reference is made to an idler pinion 44, Figure 5, engaged by that pinion 3|! which is secured to the roll shaft I 0, said idler pinion 44 being mounted upon a pin 45 supported in the partition 9 and engaging a pinion 46 secured to a shaft 41, Figure 1, having a screw portion 41' engaging a traveling block 43 slidable upon a rod 43 and secured to an angular depending body portion 50 of the pointer 43.

The cooperation of the pointer 43 with the lateral shifting of the ribbon, I4 results from the engagement of the pinion 14, Figures 1 and 2, with the rack member 19, which latter is formed with end ears slidable upon a rod 12 mounted at one end in an car 35, Figure 4 depending from the top of the casing I, and at the other end in the partition 9, there being secured to the rack member 19 the rearwardly and'upwardly projecting indicator plate 11, Figure 2, over which the pointer 43 travels. The indicator plate 11 is supported and aligned at its outer projecting end by downwardly-extending ears 84 which are supportedby and slidable' upon a rod 18, Figures 1 and 2. The indicator plate 11 displays indicia 36, Figures 2, 4, and '7, arranged in a single lateral series of characters forming an index for the data 61 displayed upon the ribbon I4, Figure 6.

By the means already described, it is evident that the rolls l2 and I3 can be turned so as to cause the ribbon 4 to travel up and down between the pair of lenses 32 and the single lens 34, and that the carriage 68, and hence the rolls I2 and I3 and the ribbon I4, can be laterally shifted relative tothe lenses 32 and the lens 34, and that thus any selective portion of the ribbon I4, either longitudinally of or crosswise of the ribbon, can be spotted between the lenses 32 and the lens 34 so as to focus the light from said ribbon portion in the lens 34. Also, it is evident that the particular portion of the ribbon which is spotted between the lenses 32 and the lens 34 can be indicated by the pointer 43 upon the indicator plate 11 and that the indication can be readily seen by the operator since the indicator plate 11 'is upon the top of the directory and is readily visible through a glass plate 8| which covers and protects the plate 11.

When using the directory, the small characters printed or otherwise displayed upon the ribbon I4 are viewed through a ground glass top plate, 53, Figures 1 and 7, mounted in the top of the casing I by means of the flange 6' of the partition 6, the rib 1, and an angular clamp 54 secured to the under surface of the casing top. The enlarged image of the particular ribbon portion being inspected is seen in a mirror 4| which is mounted in the chamber I upon an inclined base projected inwardly from a rear removable casing der inspection is focused in the lens 34 and diverges therefrom to throw the enlarged image on the mirror 4|. Inasmuch as the indicia displayed upon the ribbon I4 is made small, for the purpose of compressing a great amount of data into small compass, as has hereinbefore been men-' tloned as an object of the invention, there is utilized, as an aid to the discernment of the characters in the mirror 4|, in addition to the expanding lens 34, arranged as shown in Figures l and 3, a lamp 33 substantially horizontally aligned with the axis of the lens 34 and with the center of the mirror 4|. Also, two converging lenses 32 are utilized between the lamp 33 and the film I4 so as to focus the rays from the lamp 33 within a comparatively short distance and'thus the lens 34 can be positioned relatively close to the lenses 32, as indicated in Figures 1 and 3.

Inasmuch as it is desired that the lamp 33 shall burn only when the directory is being used, I provide an automatic switch 35, Figure 4, located in the chamber I and forming part of the light circuit and closed only when the hand wheel 2|] has been moved outwardly somewhat from its idle position shown in full lines in Figure 4. This switch 35 is of spring material and of plate formation and is secured at one end to the inner surface of the outer wall of the cap extension 8. Intermediate of its ends the switch plate 35 is intersected by the shaft 2|, and, at its free end, it forms a make or break terminal 36 adapted to be moved into contact with, or, if unrestrained, to spring away from, a plate contact member 31 secured to the inner surface of the outer wall of the cap extension 8. The plate contact member 31 is in circuit with'a lamp conductor 33. The spring switch 35 is inwardly bowed intermediate its ends and tends to move its free end terminal '36 away from the terminal plate 31. In so doing, the spring switch 35 also tends to move the shaft 2| to its inner or idle position shown in full lines in Figure 4, due to the fact that the intermediate portion of the spring plate 35 which surrounds the shaft 2| bears against an insulating block 39 mounted on the shaft 2| and disposed against a collar 40 secured to the shaft 2|. Thus, when the shaft 2| is pulled outwardly by the hand wheel 20, the stop 40 and insulating block 39 compress the spring switch 35 and bring the terminals 36 and 31 into contact, thus closing the light circuit through the conductor 38. Upon the hand wheel 20 being pulled further outwardly until the driven pinion 22 engages the pinion 25, the external gear 21 is rotated integrally with the pinion 25, when the hand wheel 20 is turned, resulting in turning the rolls I2 and I3 at high speed'through the medium of the pinions 30. Upon pulling the shaft 2| still further outwardly, until the driven pinion 22 engages the idler pinion 23, the latter turns the internal gear 26, when the hand wheel 20 is turned, and thus turns the external gear 21 which is integral with the internal gear 26, resulting in the turning of the rolls I2 and I3 at slow speed through the medium of the pinions 30. Upon releasing the hand wheel 20, the shaft 2| is moved inwardly to its idle position, under the action of the spring plate 35,, and the terminals 36 and 31 are separated, resulting in an opening of the light circuit.

The purpose for which the rolls I2 and I3 are door 5|. The light from the ribbon portion unrotated; asalso, the purpose of the different speeds of rotation, and the purpose of the lateral shifting of the ribbon 4, as well as a preferable arrangement of the characters 81 upon the ribbon l4, will now be described. An inspection of Figure 6 will show that I have subdivided the grouping of the characters upon the ribbon |4 into ten smaller relatively lateral groups each arranged vertically of the film l4, such groups being indicated by the characters 88,, 89, 98, 9|, 92, 93, 94, 95, 96, and 91, respectively, each laterally adjacent pair of vertical divisions being separated by a spacing such as 98, each of the vertical divisions 88-91, inclusive, containing words commencing with one or more of the letters of the alphabet in sequence, for instance, the division 88 would, in the complete make-up of the film I 4, contain the names, addresses, telephone numbers, and/or such other data as is suitable, for all telephone listings from the beginning of the alphabet up to and including part of the listings commencing with Br.

When it is desired to obtain an enlarged image .in the mirror 4| of a certain listing upon the film l4, the thumb piece 15 is turned so as to bring that vertical division of the film I4, within which the listing is contained, within the field of light passing from the lenses 32 through the lens 34, a substantially exact approximation of which can be obtained by registering the spacings 98, Figure 6, with two suitably, spaced lines 8|, Figure '7, upon the glass 8|. An analysis of the apparent upside down and reverse lateral arrangement of the characters 81 upon the film l4 shown in Figure 6, together with an analysis of the direction of travel of the light from the lamp 33 through the lenses 32 and 34 to the mirror 4|, will disclose that the enlarged image shown in the mirror 4| will be right side up and read properly laterally from left to right. Also, it will be observed that the turning of the thumb piece 15 to actuate the carriage 68 in either direction through the medium of the rack 13, will shift the vertical divisions 88-91, inclusive, upon the ribbon l4 in the proper direction .forcorrect registration upon the indicating plate 11, inasmuch as the characters upon the plate 11 are arranged from left to right, and this plate 11, through the instrumentality of the pinion 14 and rack 19, travels in a direction opposite to that in which the film I4 is moved laterally.

After the proper vertical division of the film 4 has been brought within the field between the lenses 32 and the lens 34, the hand wheel 28 is pulled outwardly so as to cause the driven pinion 22 to engage the pinion 25, the circuit of the lamp 33 being closed just previously to such engagement, as hereinbefore described, and then the turning of the hand wheel 20 causes the rolls l2 and I3 to rotate rapidly, and the ribbon [4 to travel rapidly vertically, either upwardly or downwardly, according to the position upon the selected vertical division of the ribbon H of the particular listing sought. An approximation of the position of this listing can be obtained by watching the travel of the pointer 43 over the indicator plate 11. When the position of the desired listing is approximated, the hand wheel 20 is pulled still further outwardly so as to cause the driven pinion 22 to engage the idler pinion 28, resulting .in a slower rate of travel of the ribbon M, by reason of the rotation of the rolls l2 and I3 from the idler pinion 28 and the internal gear 26, thus permitting the ready spotting of the desiredlisting.

The ribbon I4 is caused to travel smoothly vertically by reason of the provision of a glass base plate 24 and a pair of vertically spaced guide rods 8|, between which plate 24 and guide rods 3| the ribbon |4 travels, Figures 1 and 3, the guide rods being located, respectively, just above and just below that portion of the film 4 which is subject to inspection in the mirror 4|.

The base plate 24 and the guide rods 3| are mounted in the vertical carriage plates 88', Figure 3, and held against lateral displacement by cap plates 69 secured to the outside faces of the carriage plates 68' by screws 1| which pass through the plates 68' and engage both ends of vertically spaced rods 10 disposed between the rolls l2 and I3 and parallel therewith, Figure 4, the rods 10 serving to hold the two plates 68' rigidly in spaced and aligned relation.

I provide means for readily replacing the rolls l2 and I3 and the film l4, as well as insuring quick and convenient and proper alignment of the new rolls in the carriage 68. To this end, I provide a casing side door 51, Figures 3 and 4, removably held in position by rotatable clamps 58 which cooperate with inwardly-extending casing lugs 58', the door opening being sufficiently large to permit the carriage frame 88 and the contained rolls and film to pass therethrough. In dot-and-dash lines, Figure 4, is fragmentarily shown the movable carriage 68 and the film in loading position when the door 51 has been removed. Assuming that the carriage 68 has been moved by the thumb piece 15 so as to cause the rack 13 to become disengaged from the pinion 14, the carriage is then moved by hand further to the left so as to cause it to pass through the opening covered by the door 51 until the lower end of the right-hand carriage plate 68 is intercepted by a stop member consisting of a casing lug 8|, Figure 4. However, this outward position of the carriage is not so extreme as to cause the right-hand carriage plate 68' to move off the rods 61 or the shafts l0 and II. The carriage 68 has, however, moved so far to the left that the rolls I2 and I3 with the ribbon H can be taken out of the carriage between the -two side plates 68'. Then fresh rolls l2 and. IS

with a film l4 can be slipped in between the carriage plates 68' and aligned with the respective shafts l0 and and the carriage then moved to the right within the casing, the rack .13 eneaged with the pinion 14, the door 51 put in place, and the new film is ready for use. It will be noted that in loading the directory with new rolls and a new film, both the rods 61 and the shafts i8 and H serve to provide proper alignment of the rolls within the carriage v68, inasmuch as the right-hand side of the carriage is not separated from the rods 61 or the shafts l8 and II during the reloading operation. It should be noted that the left-hand ends of the roll shafts properly to align the pins 62 with the respective rod slots 99, when the pins 62 intercept the free ends of the shafts l0 and II, in order that the pins 62 may enter the slots 99.

I provide a hinged front door 55, Figure 1, for

, ans-7,705- the casing I, which is clamped in closing position' by a rotatable clamp 56 adapted to engage an inwardly-extended casing lug 56', this door 55 affording access to the lamp chamber I.

I also provide suitable ventilating means for my improved directory, the same comprising upper and lower side louvres 59 at the front end of the casing, and ventilating openings 60 adjacent the top and bottom of the film chamber l WhatIclaimis:

1. A directory comprising a casin rolls mount ed therein, a flexible ribbon threaded on the rolls and adapted to be wound upon and unwound therefrom by the rotation of the rolls, said ribbon having a multiplicity ofvarying characters displayed thereon, movable means for turning the rolls, movable means for shifting the rolls as a unit, and indicatingmeans including a chart and a pointer of which the pointer is secured to the roll-turning means and the chart is secured to the said ribbon having a multiplicity of varying char-'- shifting means for moving the chart relatively to v the pointer.

3. A directory comprising a casing, rolls mounted therein, a flexible ribbon adapted to be wound upon and unwound from the rolls by the rotation of the latter, said ribbon having a multiplicity of varying characters displayed thereon, movable means for turning the rolls, movable means for shifting the rolls as a unit, and indicating means including a chart and a pointer of'which one is secured to the roll-turning means and the other is secured to the roll-shifting means.

4. A directory comprising a casing, rolls mounted therein, a flexible ribbon adapted to be wound upon and unwound from the rolls by the rotation of the latter, said ribbon having a multiplicity of varying characters displayed thereon, movable means for turning the rolls, independent movable means for shifting the rolls as a unit, and indicating means including a chart and a pointer of which one is secured to the roll-turning means and the other is secured to the roll-shifting means.

5. A directory comprising a casing, a carriage slidably supported therein, rolls mounted in the carriage, means for turning the rolls, a flexible ribbon adapted to be wound upon, and unwound from, the, rolls by the rotation thereof, the ribbon having a multiplicity of varying characters displayed thereon, a rack adapted to actuate the carriage, a pinion engaging the rack, means for rotating the pinion, a movable chart actuated by the pinion-rotating means, and a pointer mounted to indicate the position of the chart.

6. A directory comprising a casing, a carriage slidably supported therein, rolls mounted in the carriage, means for turning the rolls, a flexible ribbon adapted to be wound upon, and unwound from, the rolls by the rotation thereof, the ribbon having a multiplicity of varying characters displayed thereon, a rack secured to the carriage, a pinion engaging the rack, means for rotating the pinion, a movable chart actuated by the pinion-rotating means, and a pointer movable over the chart and actuated by the roll-turning means.

7. A directory comprising a casing, a carriage slidably supported therein, rolls mounted in the carriage, means for turning the rolls\including a plurality of selective varying speed mechanisms, a flexible ribbon adapted to be wound upon, and unwound from, the rolls by the rotation thereof,

' the ribbon having a multiplicity of varying characters displayed thereon, a pointer actuated by the roll-turning means, a movable chart over which the pointer is adapted to travel, a pair of racks one of which actuates the chart and the other of which moves the carriage, and a common actuating member for the two racks.

8. A directory comprising a casing, a carriage slidably supported therein, rolls mounted in the carriage, means for turning the rolls including a plurality of selective varying speed mechanisms, a flexible ribbon adapted to be wound upon, and. unwound from, the rolls by the rotation thereof, the ribbon having a multiplicity of varying characters displayed thereon, a pointer actuated by the roll-turning means, a movable chart over which the pointer is adapted to travel, a pair of opposed spaced racks one of which is secured to the chart and the other of which is secured to the carriage, a pinion intermediate of and engaging thetwo racks, and means for rotating the pinion.

9. In a directory, a casing, rods supported therein, said casing'including a movable door within which one end of each of said rods is removably mounted, shafts mounted in the casing and each having a free end disposed adjacent the inner surface of said door, and a carriage supported by and slidable upon the rods, the carriage also being slidable on'the shafts, the carriage having side openings through which rolls may be passed for their mounting within the carriage upon the respective shafts, and for their removal from the carriage, the door being large enough. to permit the carriage to pass through the opening formed by the removal of the door.

10. In a directory, a casing, rods supported therein, said casing including a movable door within which one end of eachof said rods is removably mounted, shafts mounted in the casing and each having a free end disposed adjacent the inner surface of said door, a carriage supported by and slidable upon the rods, the carriage also being slidable on said shafts, the carriage having end plates between which rolls can be located, the door being large enough to permit the carriage to pass through the opening formed by the removal of the door, and a stop member limiting the outward carriage movement through the door opening at a point just short of the complete withdrawal of the carriage from the free ends of the slmfts, the carriage having side openings through which rolls may be passed for their removal from the respective shaft portions within the carriage and for the bringing of rolls into axial alignment with the shafts for mounting on the latter within the carriage.

11. In a directory, a casing, rods supported therein, said casing including a movable door within which one end of each of said rods is removably mounted, a carriage slidably mounted on said rods, shafts mounted at one end in the casing, said shafts each having a free end disposed adjacent the inner surface of said door, the carriage being slidable upon the shafts, the carriage having end plates between which rolls can be located, the door being large enough to permit the carriage to pass through the opening formed by the removal of .the'door, rolls rotatably secured within the carriage to the respective shafts, the free ends or the latter being formed with elongated slots and the rolls being formed with pins adapted to engage said slotsto eflect the rotation of the rolls, and a stop member limiting the outward carriage movement through the door opening at a point just short of the complete withdrawal ot the carriage from the free ends of the shafts, the carriage having side openings through which the rolls may be passed for the removal thereof from the respective shaft portions within the carriage and for the bringing of rolls into axial alignment with said shafts and the engaging or said pins with said slots.

GEORGE J. CHAPMAN. 

